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Reflectance Colorimeter Sucroflex

Reflectance Colorimeter Sucroflex
Reflectance Colorimeter Sucroflex
Product Code : 03
Product Description

The Sucroflex reflactence colorimeter is used for the color classification of white sugar as the most eye-catching quality factor of sugar is its color, which may vary from brilliant white to yellow-brownish tones. ICUMSA, the International Commission for Uniform Methods of Sugar Analysis, has defined a color type scale for color grading of white sugars. It covers a range from 0 to 6, whereby 0 corresponds to a sugar of maximum whiteness, while 6 indicates a highly colored low-grade white sugar.

Key Features

Measuring principle

  • Photoelectric sphere photometer for measuring the green/red reflectance ratio of crystal sugar
  • Based on R(495)/R(620) reflectance ratio measurement at 495 nm and 620 nm
  • Measuring range from 0.00 to 6.00 (19.99 *) ICUMSA - Color Type Units (CTU)
  • Calibration facility for the start of the range and the end of the range


  • Precise color grading of white crystal sugars according to the ICUMSA color type scale
  • Grain size differences have no effect
  • Reproducible results, independent of the operator 

The ICUMSA-defined colour type scale extends from 0 to 6 CTU. The usable instrument range of the Sucroflex reflectance colorimeter extends up to 19.99 CTU allowing color measurement also on brown sugars.

Technical Specifications

Light Source

Tungsten-halogen lamp 6 V, 10 W, voltage-stabilized, average life 2000 h

Measuring Range

0 to 19.99 CTU, above 6 by linear extrapolation


0.01 CTU


Better than 0.05 CTU


495 nm and 620 nm, tolerance 1 %, bandwidth 20 nm

Power requirements

Self-adapting to any mains voltage of 100/120 V or 220/240 V, 45-65 Hz

Data output


Dimensions / Weight

Width 210 mm, height 315 mm, depth 310 mm, 8.8 kg


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